Home / 123,631.15-170,611.08-67,042.51

Finding the Fourth Proportional to 123,631.15, 170,611.08 and 67,042.51

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Solution

The fourth proportional to 123,631.15, 170,611.08 and 67,042.51 is: 92,518.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,631.15 : 170,611.08 = 67,042.51 : x
  2. Step 2: Convert to fraction form
    123,631.15/170,611.08 = 67,042.51/x
  3. Step 3: Cross multiply
    123,631.15x = 170,611.08 × 67,042.51
  4. Step 4: Simplify right side
    123,631.15x = 11,438,195,037.01
  5. Step 5: Solve for x
    x = 11,438,195,037.01/123,631.15
  6. Step 6: Final answer
    x = 92,518.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.